ASTM C513/C513M-11(2019)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C513/C513M − 11 (Reapproved 2019)
Standard Test Method for
Obtaining and Testing Specimens of Hardened Lightweight
Insulating Concrete for Compressive Strength
This standard is issued under the fixed designation C513/C513M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope C125 Terminology Relating to Concrete and Concrete Ag-
gregates
1.1 This test method covers obtaining, preparing, and test-
C332 Specification for Lightweight Aggregates for Insulat-
ing specimens of hardened, lightweight, insulating concrete
ing Concrete
made with either lightweight aggregate conforming to Speci-
C617/C617M Practice for Capping Cylindrical Concrete
fication C332 or using preformed foam made from a foaming
Specimens
agent conforming to Specification C869/C869M and having an
3 3 C670 Practice for Preparing Precision and Bias Statements
oven-dry density not exceeding 800 kg/m [50 lb/ft ].
for Test Methods for Construction Materials
1.2 The values stated in either SI units or inch-pound units
C869/C869M Specification for Foaming Agents Used in
are to be regarded separately as standard. The values stated in
Making Preformed Foam for Cellular Concrete
each system may not be exact equivalents; therefore, each
C1005 Specification for Reference Masses and Devices for
system shall be used independently of the other. Combining
Determining Mass and Volume for Use in the Physical
values from the two systems may result in non-conformance
Testing of Hydraulic Cements
with the standard.
1.3 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 For definitions of terms used in this test method, refer
priate safety, health, and environmental practices and deter-
to Terminology C125.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard- 4. Significance and Use
ization established in the Decision on Principles for the
4.1 This test method is used to determine the compressive
Development of International Standards, Guides and Recom-
strength of hardened lightweight insulating concrete using
mendations issued by the World Trade Organization Technical
samples taken from the field. The test results can be used to
Barriers to Trade (TBT) Committee.
determine specification compliance when results of tests on
specimens molded at the time of construction are not available
2. Referenced Documents
or are defective, and to establish the strength properties of
2.1 ASTM Standards:
existing construction.
C39/C39M Test Method for Compressive Strength of Cylin-
drical Concrete Specimens
5. Apparatus
C88/C88M Test Method for Soundness of Aggregates by
Use of Sodium Sulfate or Magnesium Sulfate 5.1 Masonry or Carpenter’s Saw, for removing a sample
from hardened concrete and cutting cubes from the sample. A
core drill is permitted for concrete thicker than 150 mm [6 in.].
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
5.2 Testing Machine,conformingtotherequirementsinTest
C09.21 on Lightweight Aggregates and Concrete.
Method C39/C39M.
Current edition approved Dec. 15, 2019. Published December 2019. Originally
ɛ1
approved in 1963. Last previous edition approved in 2011 as C513/C513M–11 .
5.3 Scales and Weights, used in weighing specimens shall
DOI: 10.1520/C0513_C0513M-11R19.
2 conform to Specification C1005.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.4 Drying Oven, conforming to the requirements in Test
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Method C88/C88M.
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C513/C513M − 11 (2019)
6. Sampling 8.4 Measure the lengths of the sides of each specimen at
about midheight to the nearest 0.25 mm [0.01 in.]. Determine
6.1 Remove a sufficiently large sample, from each sample
the average length of opposite sides and used those values to
location, so that at least four test specimens for compressive
calculate the cross-sectional area to the nearest 10 mm [0.01
strength, and one for density (unit weight), can be prepared
in. ]. Measure the height of the specimen along each vertical
without the inclusion of any concrete that has been cracked,
edge to the nearest 0.25 mm [0.01 in.] and calculate the
spalled, undercut, or otherwise damaged. The sample shall be
average height.
of such length and width as to permit the cubes and prisms to
8.5 The specimens for determination of density (unit
be cut therefrom without approaching any edge of the sample
weight) shall be dried in an oven at 110 6 5°C [230 6 10°F]
closer than 25 mm [1 in.]. Unless otherwise specified, the
and weighed at 24-h intervals until the loss in mass does not
sample shall not be obtained until the concrete is at least 14
exceed1%ina24h period. Measure the mass and dimensions
days old. Indicate the casting direction on the sample.
of the oven-dry specimens. Calculate the density of each
3 3
specimen in units of kg/m [lb/ft ].
7. Test Specimens
7.1 Compressive strength specimens shall be cubes not less 9. Procedure
than 50 mm [2 in.], nor more than 100 mm [4 in.] on a side.
9.1 Test four specimens from a single sample location for
The dimensions of the cubes shall be equal to the thickness of
compressive strength in accordance with the following:
the concrete slab unless that thickness exceeds 100 mm [4 in.],
9.1.1 Placing of Specimen—Wipe clean the bearing faces of
inwhichcasethedepthofthespecimenshallbereducedto100
the upper and lower bearing blocks of the compression testing
mm [4 in.] by sawing off the lower portion as placed. The
machine and of the test specimen and place the test specimen
casting direction shall be marked on each prepared cube so that
on the lower bearing block. Test specimens in the direction in
load can be applied in the direction of casting.
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